JMS not reliable ?

After complaining to our JMS vendor about the fact that their JMS implementation was dropping messages, their response was that JMS is inherently not reliable . . . something about there not being a message ack (recipt?) or something.
What's up with that?

Hi,
It depends which type of queue you're using and what kind of acknowledgment you require. As you go more secure in your system by enabling persistent, acknowledgment, and etc. you're loosing some performance, but it is completely acceptable for your vendor if it is necessary. I mean adding features like persistence decrease your performance because of the additional overhead to the system, but if it's required, there is nothing else to do.
I did some investigations in comparing message migration between JMS and a somehow similar solution with JINI. JMS performed better in smaller demands and poorly in larger ones. The reason of such a thing was not because of JMS, but because of the performance/response time/flood handling of your application server or mostly your persistent storage. For example I used JBOSS which by default uses an in-memory database which is not good for production. For sure, you would not get a good performance, but it's not because of JMS.
If you explain your situations more, I think we can be more helpful.
Regards,

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Hi rgw1130,
I am sad to hear about the screen on your phone. If you do not have Back Up Assistant set up, then all your contacts will not sync. Have you checked with your Gmail account to see if your contacts are there? Keep us posted.
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SSDP discovery on Windows Store App not reliable

Hi,
I am having problem implementing SSDP discovery in windows 8 store program. Below is the code:
public async Task SearchForDevices()
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socket.MessageReceived += async (sender, args) =>
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foreach (
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This code is not reliable at all. About 50% times it can't find a connected device while other discover can find. But sometimes it works.
My network sniffer (SmartSniff) sometimes can't even capture its SSDP request even though I have made the call many times.
I don't think this is an async problem since it does work occasionally. Please help me. Thanks!

Hi Jeff,
I have an additional question to this thread.
I try to share code between WinRT and Windows Phone 8 using similar code.
Starting on Windows Phone 8 I ommited the following lines:
await socket.BindEndpointAsync(null,
socket.JoinMulticastGroup(hostName);
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I could receive answers. but when I tried to use this on WinRT/Windows Shop I did not receive anything. I had to put in the two lines of code from above.
This is not how it is supposed to be, right?
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I go to admin server: server name: www.MMM.com, services: DNS and WEB : ON
DNS: Zones; www.MMM.com, type: primary
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alias: MMM.com, web services enabled: all.
also enabled default address any, port 80
stop, and start web service.
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httpd: aprsockaddr_infoget() failed afor www.MMM.com
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ok,
I formated the MAC server for 4th time, installed again the server software, then I went for the Basic configuration. then entered the adress manually, then you have to delete the DNS entry (set it in blank), then in the next window enter the NS (which is the server name). then continue the installation.
after starting the web service is running and it is resolving address.then you can upgrade to the advanced configuration and install the other services.
in that order the www is resolving the address.

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I recently got my iphone from AT&T which came with a charger and know the charger says "this cable is incompatible with this iphone and is not reliable" can anyone tell me how I can fix this or what to do?

Contact AT&T to have them replace the cable.

I'm having problems printing from my 15" macbook pro to my HP wireless printer. It works sometimes but not reliably, it can spend hours "seating for printer". I can print from my i pad with no problems

I'm having problems printing from my 15" macbook pro to my HP wireless printer. It works sometimes but not reliably, it can spend hours "seating for printer". I can print from my i pad with no problems

Hi,
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Airport Extreme's support for streaming video NOT reliable for RealPlayer

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HERE'S THE REASON FOR CONCLUDING THAT
Even after updating with the latest software and firmware available for my Airport Extreme Base Station, RealPlayer will not play streaming video when my iMac is online via my Airport Extreme Base Station.
(The configuration is iMac (non-wireless) --> Ethernet cable --> Airport Extreme Base Station --> DSL modem.
Note that with that configuration I can browse the internet and play audio through RealPlayer - even though I cannot play streaming video.
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In RealPlayer/Preferences/Transport, I selected to use HTTP transport exclusively.
Here's where to find details of that solution in RealPlayer's OnLine Help:
In RealPlayer's Help menu, choose RealPlayer Online Help. Scroll down the left side of RealPlayer's help window to find the section Troubleshooting -> Network/Connectivity -> Wireless Issues.
CREDIT FOR PUBLICISING THE "WORK AROUND" SOLUTION IN APPLE DISCUSSIONS
I found the aforementioned "work around" solution in a posting in this forum by Greg Robbins on Sep 2, 2005.
The topic in which I found that posting has been archived - replies are not allowed.
I am posting this topic to clarify the deficiency in Airport Extreme, and to help keep this solution available for the Mac community.
G4 iMac Mac OS X (10.3.9)
G4 iMac Mac OS X (10.3.9)

I should not have started this thread as a "question".
The initial posting presents a problem together with a "work around" solution.

IMessage on iMac not reliably receiving photos

iMessage on iMac not reliably receiving photos but my iPhone and iPad are-what's the fix for this?

Hi,
I've been with the same problem for a couple of days, until finally today Messages simply stopped showing even a the window, so absolute inability to use it.
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Pros: Nice to look at, fast ethernet speeds.
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E2500 is definitely one of the better routers that Linksys manufactures. Not only does it look good but it performs well also.
Your issue of intermittent wireless connection can be fixed by changing the wireless settings on the router like the wireless channel and some advanced wireless settings like the beacon interval, fragmentation threshold and RTS threshold. Also, there are many devices such as cordless phones, microwave ovens which work on the same frequency as that of the router i.e 2.4 Ghz. Try keeping these devices away from the router so that the signals do not interfere. Hopefully, this should make the wireless connection stable.
Also, you cannot RMA the device to the store, but you can RMA it to Linksys if the product is still under hardware warranty.

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When it does work, the computer takes 2-3 minutes to go to sleep after the display sleeps.
I'm running Snow Leopard with all the available updates.
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Hi,
I've been struggling with same issue too, idle timer sleep just didn't work most of the time. I am a recent convert from Windows world and there were never issues with PC to go to sleep after idle timeout. With SL it was not so easy.
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Other one was facebook, even with flash disabled. Something in their real-time updating of statuses again prevents sleeping. I tried disabling java and java script too, it might help but then facebook does not work at all. Solution is to always close facebook after using it. Not a really good one, it's easy to forget running.
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Battery status not reliable

Hello there,
I got my rMBP mid 2014 two weeks ago and my battery status is not reliable. Please excuse my terrible language as English is not my first language. Back to my question. I am simultaneously using the "battery health" app from the AppStore. Both display similar battery stats when I first got it they were identical and I am confused. The built in stat says that my MBP is fully charged but "battery health" says that it's at 96%. And the battery capacity was at 107% and dropped to 100%. Should I be worried or is everything alright?
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Don't rely solely on the stats produced by a third party app.
You can take the computer to the Apple store to have it checked out.
Best.

Does JMS support reliable messaging (store-and-forward) for app clients?

I need to write an enterprise application client (launched with Java web start or packaged with a tool like Sun's package-appclient) that can send messages reliably from Linux to Windows. JMS seems like the obvious solution, so I deployed an EAR file with an MDB and an application client on a Windows machine (running SJSAS 9). I was able to download the client jar file onto Linux and send JMS messages successfully. However, if the Windows machine is not available, the Linux client immediately throws exceptions and fails. Are there any JMS providers that provide a store-and-forward mechanism for enterprise clients, so that if the remote server is not available immediately, messages are delivered later? (Note that the client can't be a servlet or other server-managed component.)
I'd prefer an open-source solution, but this requirement has an extremely high priority for my customer, so I'll use a commercial product if necessary. And if there's something other than JMS that works, that would be fine. (In my case, the messages on the remote side ultimately go to a .NET service, so WS-ReliableMessaging would be ideal, but it looks WS-RM won't be integrated into .NET until Vista, and the current WS-RM implementation is a beta, etc., etc.)
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You could use Apache ActiveMQ
http://incubator.apache.org/activemq/
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http://incubator.apache.org/activemq/networks-of-brokers.html
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http://incubator.apache.org/activemq/how-can-i-support-auto-reconnection.html
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http://logicblaze.com/
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Thanks.

Does the image seem to triplicate across the screen and jump around with all kinds of distortions? If so it appears you may have the same problem many iBook users were having...
squeeb, "Composit/S-video output adapter Will not work", 08:21am Mar 5, 2004 CDT
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That was an iBook though, this may be different to your problem (you hope).
I certainly hope! I was planning to get a mac mini soon to setup a kind of media center. I was one of the unlucky ones with the iBook problem, so this is very bad news if the Mac minis are having the same problem!
Good luck! Keep us posted if you make any progress.

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Hi
My partner has recently bought a second-hand (but fully functional) Macbook Pro running OS X 10.5.8 to set up in our home office.
Our wireless router is not in the same room (it's in the living room via the hallway) but no other computer or device in the house has any problems detecting and connecting to the router.
My partner's pc netbook and my iPhone 4S connect fine all through the flat. My iMac (located in the office) also has no problems.
We have managed to get the Pro connected to the internet wirelessly a couple of times in the living room (although not all the time) but as soon as it is moved into the office the connection cannot be found or successfully connected to.
Can't help but think that there's some little setting or something that we've not done that is causing the problem - seems odd that all the other devices connecting have never had any issues! I'm not completely technically minded, but have had enough experience with computers to feel fairly confident on them - just wondered if anyone might be able to suggest anything?
The Network Preferences pages don't seem to be any help to me - I've tried several things in there that would usually help to rectify a troublesome connection.
Any help or advice would be so much appreciated - my partner bought this Macbook Pro to replace her netbook and a reliable online connection is paramount as she is designing websites etc. with it!
Thanks,
Jimbanzee

Hi JohnTh
Thanks for your suggestion (and apologies that it's taken forever for me to try this out and get back to you)!
I think I've done what you suggested but I think my lack of computer knowledge is letting me down as it did not work.
I went to Network in System Preferences whilst connected to the internet via Ethernet cable, and managed to connect to my router, I then locked the changes, removed the cable and then restarted but straight away upon logging in, it had lost the changes and was unable to find the wireless connection.
To be honest, it will not always find it when the ethernet cable is plugged in - in fact, I've witnessed it go from green light connection, having found the router and getting an ip address to amber without the ip address to not being able to locate the router (all whilst still plugged in on ethernet) within the space of about two minutes!
I'm a bit hazy on the details of your suggestion when you say:
Go to the wireless setup from here, and change the name to something that you can recognise. Make sure that it is password protected. Save it so that it'll write itself to its flash memory (your network will briefly not work).
I went to the Network page of System Preferences straight away - is there somewhere else I should do the wireless setup? Our wireless connection is (as it is on my iMac which connects fine wirelessly) protected with a WPA2 Personal password.
How do I save it so that the setup will write itself to it's flash memory? Sorry not sure where this is!
I have also tried to remove the 'remembered' network from the advanced airport settings using the '-' button and then adding it '+' back in, but this also does not seem to work.
We are planning on upgrading the operating system from 10.5.8 once we can get a secure connection - my partner is happy that she can connect to the internet via Ethernet cable but she is wanting to sell her PC netbook (in order to part fund the purchase of the Macbook Pro) and she's not happy to do so until she can connect wirelessly successfully!
Finally, thanks for all your help and suggestions - really appreciate it and hope to find a solution!
Jimbanzee

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Please enable the following command and then try to connect:
ip inspect log drop-pkt
If I am not overlooking at the configuration, it seems to be ok, so I would like to check ZBF.
Please check the logs generated by the Router and let me know if you see anything related to your connection.
Thanks.
Portu.

JMS not reliable ?

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